API 609 Triple Offset Butterfly Valve
Design standard: API 609
1. Body material: Carbon steel, Stainless steel, duplex stainless steel, Alloy steel, Nickel alloy
2. Pressure range: Class 150-1500 LB, PN20-PN250
3. Nominal diameter: NPS 2-120 Inch, DN50-DN7200
4. End connection: Flange, Wafer, Lug, BW
5. Mode of operation: Lever, Gear box, Electric, Pneumatic, hydraulic device, Pneumatic-hydraulic device
6. Working temperature: -29℃ - 350℃
Features:
1. Can be installed in any position
2. Zero leakage design
3. Without any friction between disc and sealing surface when opening or closing,
4. Soft seat or metal seat is available as per customer request
5. Unidirectional seal or Bidirectional seal is available as per customer request
6. Spring loaded packing can be chosen
7. Low temperature or ultra low temperature butterfly valve can be chosen as per customer request
8. Low emission packing can be chosen according to ISO 15848 requirement
9. Stem extended design can be chosen
Main features: Triple offset butterfly valve has one more offset feature compared to double offset design, which is the seat cone axis offset from the stem centerline that reduces the operating torque. Triple offset butterfly valves are widely used in power plant, petrochemical, metallurgy, water supply and drainage system, municipal construction as throttling flow and shutoff equipments.
